Self-organization of vortices in type-II superconductors during magnetic relaxation

Abstract

We revise the applicability of the theory of self-organized criticality (SOC) to the process of magnetic relaxation in type-II superconductors. The driving parameter of self-organization of vortices is the energy barrier for flux creep and not the current density. The power spectrum of the magnetic noise due to vortex avalanches is calculated and is predicted to vary with time during relaxation.

RevTex, 5 pages, 2 PS figures. Accepted in Phys. Rev. B

References in corpus (2)

• Superconducting vortex avalanches, voltage bursts, and vortex plastic flow: Effect of the microscopic pinning landscape on the macroscopic properties
• Collective flux creep: beyond the logarithmic solution

Cited by in corpus (2)

• Effective collective barrier for magnetic relaxation in frozen ferrofluids
• Quasiparticle spectroscopy, transport, and magnetic properties of Nb films used in superconducting transmon qubits